To be in a state of complete incapacity. Taken from the Secret of Mana game on SNES. The character 'Moogle' in the game is only capable of saying short words beginning with the letter 'p' or 'k'. E.g. 'Pu' or 'Kupi'. Similar words are often uttered when unable to form 'real' words
Families that picnic, camp or otherwise invade your space in parks, wilderness areas, beaches or any other open place. Magoogling happens because families have lost any sense of privacy and assume that if you are in that place, clearly that is the only place for people to be.
"Let's walk farther down the beach so we don't get Magoogled."
"Nothing keeps away the Magoogles like a couple of naked men."
We were smoking pot and talking about sex, but the Magoogles found us and picnicked right next to us!